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Finding the Fourth Proportional to 328,450.40, 492,092.40 and 307,455.20

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Solution

The fourth proportional to 328,450.40, 492,092.40 and 307,455.20 is: 460,636.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,450.40 : 492,092.40 = 307,455.20 : x
  2. Step 2: Convert to fraction form
    328,450.40/492,092.40 = 307,455.20/x
  3. Step 3: Cross multiply
    328,450.40x = 492,092.40 × 307,455.20
  4. Step 4: Simplify right side
    328,450.40x = 151,296,367,260.48
  5. Step 5: Solve for x
    x = 151,296,367,260.48/328,450.40
  6. Step 6: Final answer
    x = 460,636.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.